It’s a sign of solidarity and mutual respect between teacher and pupil, one that is thought to encourage the right classroom atmosphere. Justice Minister Simonetta Sommaruga recently felt compelled to further explain that shaking hands was part of Swiss culture and daily life.

And the reason she felt compelled to speak out about the handshake is that two Muslim brothers, aged 14 and 15, who have lived in Switzerland for several years (and thus are familiar with its mores), in the town of Therwil, near Basel, refused to shake the hands of their teacher, a woman, because, they claimed, this would violate Muslim teachings that contact with the opposite sex is allowed only with family members.

At first the school authorities decided to avoid trouble, and initially granted the boys an exemption from having to shake the hand of any female teacher. But an uproar followed, as Mayor Reto Wolf explained to the BBC: “the community was unhappy with the decision taken by the school. In our culture and in our way of communication a handshake is normal and sends out respect for the other person, and this has to be brought [home] to the children in school.”

Therwil’s Educational Department reversed the school’s decision, explaining in a statement on May 25 that the school’s exemption was lifted because “the public interest with respect to equality between men and women and the integration of foreigners significantly outweighs the freedom of religion.” It added that a teacher has the right to demand a handshake. Furthermore, if the students refused to shake hands again “the sanctions called for by law will be applied,” which included a possible fine of up to 5,000 dollars.

This uproar in Switzerland, where many people were enraged at the original exemption granted to the Muslim boys, did not end after that exemption was itself overturned by the local Educational Department. The Swiss understood quite clearly that this was more than a little quarrel over handshakes; it was a fight over whether the Swiss would be masters in their own house, or whether they would be forced to yield, by the granting of special treatment, to the Islamic view of the proper relations between the sexes. It is one battle – small but to the Swiss significant – between o’erweening Muslim immigrants and the indigenous Swiss.